FOSSIL FORAMINIFERA FROM THE BURDWOOD BANK 



13 



CORRELATION OF THE REGIONAL STRATIGRAPHY 



Marine Upper Cretaceous (Senonian) strata are known in Southern Patagonia and 

 Tierra del Fuego/ where, following Wilckens, they are termed the San Jorge Series, and 

 possibly extend up into the Danian. In Graham Land similar strata form part of the 

 Snow Hill Beds and Seymour Island Beds.- In each area they contain an abundant 

 fauna of ammonites ; one that is common to both gives its name to beds in the Pata- 

 gonian area, Lahillia luisa, Wilckens. This ammonite fauna is said to resemble those of 

 the same age so far afield as Natal, Southern India, Japan and Vancouver. In addition 

 the fauna includes corals, Mollusca, etc. 



Fig. 2. 



Through the kindness of Dr G. W. Tyrrell, material for comparison from the 

 Cumberland Bay Series of South Georgia was available from the Ferguson Collection 

 in the Hunterian Museum, University of Glasgow. From this series an ammonite was 

 collected by Dr Konig of the German Antarctic Expedition under Lieut. Filchner, and 

 is possibly of Cretaceous age; Radiolaria believed to be Mesozoic were found in the 

 material in the Ferguson Collection.^ The material now examined consisted of hard, 



1 Cf. O. Wilckens, 1906, Neues Jahrb. Min., Beil-Bd. xxi, pp. 98-195. 



^ Cf. T. G. Andersson, 1906, Bull. Geol. Inst. Univ. Upsala, vii (1904-5), pp. 19-71, 2 maps, 



^ In J. W. Gregory, 1914, Geol. Mag., p. 64. 



